Salve Richard, *! On Thu, 23 Nov 2006, Richard Franks wrote:
> On 11/23/06, Tapani Pälli <[EMAIL PROTECTED]> wrote: > >> [location tagging] > > > >I think these kinds of things would be doable if user could 'tag' > >locations based on available bluetooth or wifi hotspot data. Then later > >on device can make assumptions : "I can see this wifi now so I must be > >at/near location A", "I can see paired bt-device which is car's wireless > >headset so I must be near users car". System could also store last gps > >location when car's headset (or whatever user has customized) was visible. > > I'm not sure I understand why transient sources (bluetooth + wifi > hotspots) would be more useful for mapping the locatity than AGPS? First I thought the same - only the information "in the area of the radio spot" is not so usefull as AGPS, but probably free of costs. But AFIK you could have more information than just "you are in the area of BTdevice foobar": you got the singnal quality level :) So use differn't beeps to signalise if the signal level ~ distance, will indicate by beeps/minutes, and the changing signalisated with the sound - increase LowHigh - stagnate longLow - decrease HighLow Oh, I hate me for speaking out this - I hate the developer of SMS signalisation *** --- *** *** --- *** BTW it is funny that this is the morse code for "SMS SMS" but I hate him that it is used twice - and I love the inovation of vibra alarm :) So to avoid that everybody will find their car/friends with beeping around - it could be colourd flashs: - increase green - stagnate white - decrease red So beside the costs, why shout this be usefull? Consider that you are in a big crowd (concert, sport event, disco) with some friends and you are not tall, nor your friends how to find back your friends after e.g. organising some drinks? With AGPS you and your friends must have it and you need a dataconnection. With a bluetooth solution it is enough that the other phone has bluetooth. (And you could chat or phone - where are you...) One location here in Aachen is an old bunker with 1-2m beton walls, even GSM is not working there... so you could not phone your friends, nor use AGPS (I quess). Desaster situation - even when there is a GSM blackout - you could use it. And when the hardware design would have several directed antennae and there are two receiver chips or just a analog swich between one chip and the antennae (using SPI and hack it ourself *g*) then the software could also bearing of a direction. But even one directed antennae and rotating the device without walking could suss out the direction to the other sender. Beside finding other people, for radio beacon would be IMHO 433 Mhz cheaper - so I like add a 433 Mhz to a mobile ;) And a headset could cover what you are doing... :) > Hmm.. the global locate site appears to be down just now, which url? www.openmoko.com is working fine (It was only some days ago down for some hours - but after that, it has some specification information online) > and I don't > know the exact chip used, but the company do boast 'indoorGPS' as one > of their chipset features IIRC. Or it may refer to a specific chipset. Sean/FIC didn't published the exact chipset, but I had speculated a bit and Sean gave feedback: http://lists.openmoko.org/pipermail/community/2006-November/000118.html Greetings, rob PS: With more smartphones BT or Wifi - Public BBS (Blackboxsystems) could become populare - with different level for new and old users leaving and getting data - e.g. cityinformations. Location close to major train stations or the marketplace would be good for this ;) A - and your device could be a open (mobil) BBS as well When you want to do such thinks - cope with that you may have to modify a usb adapter to mini USB and plug it into the Neo ;) _______________________________________________ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/cgi-bin/mailman/listinfo/community